ICL3225ECP

Overview

The Intersil ICL3225ECP is a dual transmitter and dual receiver RS-232 transceiver designed for operation with supply voltages ranging from 3.0V to 5.5V. It supports data rates up to 1Mbps while maintaining low power consumption with an operating supply current of 1mA. The device features enhanced automatic powerdown functionality, reducing standby current significantly when no valid signal is present on the line. It provides ±15kV ESD protection on all pins and meets EIA/TIA-232 and V.24/V.28 standards. The component is housed in a 20-pin PDIP package.

Feature Summary

• Enhanced automatic powerdown circuitry minimizes power consumption during idle periods by detecting the absence of valid signals on the receiver inputs.
• Integrated ±15kV electrostatic discharge (ESD) protection on all RS-232 signal pins ensures robustness against static events without requiring external components.
• Single capacitor design simplifies board layout and reduces overall system cost by eliminating the need for multiple charge pump capacitors.

Applications

• Portable battery-powered equipment requiring low-power serial communication
• Industrial control systems needing reliable RS-232 interfaces with high ESD immunity
• Embedded systems utilizing microcontrollers with 3V or 5V logic levels

Procurement Notes

Verify the specific suffix 'CP' corresponds to the 20-pin PDIP package and commercial temperature range as documented in official datasheets. Confirm RoHS compliance status through manufacturer documentation. Ensure ordering specifications match the required lead time and packaging format directly from authorized distributors or Renesas/Intersil channels.

Selection Notes

Select this component when designing systems that require full-duplex RS-232 communication with minimal external capacitance. It is suitable for applications where power efficiency is critical due to the 1mA active current and automatic powerdown feature. Ensure the operating environment stays within the specified voltage range of 3.0V to 5.5V and the temperature limits defined in the datasheet.

Part Context

The ICL3225ECP belongs to the ICL32XXE family of RS-232 transceivers manufactured by Intersil, now part of Renesas Electronics. This series is characterized by its ability to operate from a single 3V to 5.5V supply and its inclusion of enhanced power management features. The 'E' designation typically indicates the enhanced version with improved ESD protection and lower power consumption compared to earlier generations.

Replacement Considerations

Direct replacements include other members of the ICL3225E family such as ICL3225ECAZ or ICL3225EIAZ, depending on the required package type (SSOP vs. PDIP) and temperature range. Verify pin compatibility and electrical specifications before substitution.